Home / 30,816.04-42,523.02-17,890.84

Finding the Fourth Proportional to 30,816.04, 42,523.02 and 17,890.84

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Solution

The fourth proportional to 30,816.04, 42,523.02 and 17,890.84 is: 24,687.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,816.04 : 42,523.02 = 17,890.84 : x
  2. Step 2: Convert to fraction form
    30,816.04/42,523.02 = 17,890.84/x
  3. Step 3: Cross multiply
    30,816.04x = 42,523.02 × 17,890.84
  4. Step 4: Simplify right side
    30,816.04x = 760,772,547.14
  5. Step 5: Solve for x
    x = 760,772,547.14/30,816.04
  6. Step 6: Final answer
    x = 24,687.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.